Demands

In the DDM program, the demands are landfills.

In them, click the target item and fill in:

1. Name - Item name, examples: Landfill, ADME, BotaFora, Backfill, Final Layer
2. Type - Informs the type of the demand. Can be:
   • Fixed - Includes all demands that have mandatory execution, ie must always be done. Example: Landfill, Final Layer, Backfill
   • Variable - Includes the demands that have optional execution, ie the ADME or dump site. These will have an absorptive capacity that can be either used or not.
   • Undefined - When sorting sources and demands, the total volume of source and the total volume of demand are compared. If there are more offers that demands, a dummy demand will be created so that DDM can calculate the distribution by the method Stepping Stone, which requires that the supply and demand are balanced. This item is created automatically by the plugin and can not be changed, however the user can choose if this dummy dump site will only be for the variable type sources or if it also serves for those of fixed type . It is recommended to calculate once with the unchecked option and look at the distribution to see if you would be looking for a nearest boot.
3. Code - Item code. It will be used to form the name of the ranges. Examples:
   • AT - for third category landfill body
   • AS - for landfill body
   • CF - for final layer
   • RS - for soil backfill
   • RR - for backfill
   • AD - know dump site
   • BF - unknown dump site
4. Geometric Volume - Volume of the material after being compressed on landfill
5. Equation - used by DDMLINK , to import the areas of Material List. You can only edit if the program is working with DDMLINK and Civil 3D. Double-click the cell to open Equation Editor
6. Minimum CBR - lowest acceptable CBR value for the range. It comes from guidance geotechnical earthworks, will define the possible of each source ranges
7. Maximum Expansion - Maximum acceptable expansion in the range. It comes from guidance geotechnical earthworks, will define the possible of each source ranges
8. Maximum Permeability - Maximum acceptable permeability in the range. It comes from guidance geotechnical earthworks, will define the possible of each source ranges
9. Distance - informs you how to move away from the rectangle of the axis

For each demand item, please also report:

1. Areas and volumes
2. Ranges

If any value is invalid, the text will be in red, indicating the error.

Cells with yellow background, are editable. Cells with white background, are read-only.